Hypothyroidism and Cretinism Quiz

• Myxedema madness
• is a correct statement but not the answer to the question. B) is a symptom of hypothyroidism but not a congenital abnormality. C) is a type of goiter but not a congenital abnormality. (correct)
• Endemic Goiter
• Graves' disease

• TSH is high, the serum level of T4 and T4 is normal (subclinical hypothyroidism
• Nervousness, weight loss, hyperphagia, heat intolerance, increase cardiac output, increased pulse pressure, a fine tremor of the outstretched fingers, sweating and variable increment in BMR.
• Dwarfism and mental retardation with potbellies and enlarged protruded tongues.
• is a correct statement but not the answer to the question. C) is a symptom of hyperthyroidism but not a clinical finding in endemic goiter. D) is a description of cretinism, not endemic goiter. (correct)

• is a characteristic of endemic goiter, not Graves' disease) C) is a cause of endemic goiter, not Graves' disease) D) is a cause of physiological goiter, not Graves' disease
• Increase stress and demand for T3 and T4 necessary for growth
• Autoimmune disease with circulating antibodies formed against TSH receptors (correct)
• Inadequate thyroid hormone synthesis due to low dietary intake of iodine